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- Question
Stars are held together by
Options- A. Gravitational forces
- B. Electrical forces
- C. Ionic forces
- D. Magnetic forces
- Correct Answer
- Gravitational forces
- 1. Gravitational force is maximum at which place
Options- A. Poles
- B. Tropic of cancer
- C. Tropic of capricorn
- D. Equator Discuss
- 2. A gradual increase in loudness is known as
Options- A. Crescendo
- B. Timbre
- C. Fortissimo
- D. None of the above Discuss
- 3. When a running car stops suddenly, the passengers tends to lean forward because of
Options- A. Gravitational force
- B. Inertia of motion
- C. Law of conservation of mass
- D. Both B & C Discuss
- 4. Refractive Index of glass with respect to water is
Options- A. 4/3
- B. 9/8
- C. 2/3
- D. 8/9 Discuss
- 5. Electric power is measured in units of
Options- A. Volt
- B. Joule
- C. Watt
- D. Ampere Discuss
- 6. Glass is made of which material?
Options- A. Calcium carbonate
- B. Sand
- C. Silver Iodide
- D. Lime Discuss
- 7. When a barometer is rising air pressure is
Options- A. increasing
- B. decreasing
- C. constant
- D. zero Discuss
- 8. Which of the following pairing is incorrect
Options- A. Hygrometer - Water vapour content of the atmosphere
- B. Lactometer - Specific gravity of liquids
- C. Anemometer - Speed of the wind
- D. Seismograph - Earthquakes Discuss
- 9. What is the unit of resistance?
Options- A. ohm
- B. farad
- C. henry
- D. weber Discuss
- 10. SI unit of Luminious intensity is
Options- A. Lumen
- B. Lux
- C. Candela
- D. Watt Discuss
Physics problems
Search Results
Correct Answer: Poles
Explanation:
Gravitational force is the force that binds everything at the surface of the earth. Gravitational force is maximum at Poles.
Correct Answer: Crescendo
Correct Answer: Inertia of motion
Explanation:
When a running car stops suddenly, the passengers tends to lean forward because of Inertia of motion.
Correct Answer: 8/9
Explanation:
Refractive Index of glass with respect to water can be calculated by
(Refractive Index of glass with respect to air) × (1/Refractive Index of water with respect to air)
We know that,
Refractive Index of glass with respect to air = 4/3
Refractive index of water with respect to air = 3/2
Hence, Refractive Index of glass with respect to water = (4/3) x (2/3) = 8/9.
Correct Answer: Watt
Explanation:
Electric power is the rate per unit time, at which electrical energy is transferred by an electric circuit. The power of electricity is measured in watts and kilo watts.
1 Watt is the unit of electrical power equal to one ampere under the pressure of one volt.
Correct Answer: Sand
Correct Answer: increasing
Explanation:
The device which is used to measure air pressure is called as barometer. If the barometer reading is rising, it indicates that the air pressure is increasing and if the reading is falling the air pressure is decreaing.
Correct Answer: Lactometer - Specific gravity of liquids
Correct Answer: ohm
Correct Answer: Candela
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